Window frame



Nov. 10, 1959 A. H. KIEHL ETAL WINDOW FRAME .'5 Sheets-Sheetl Filed Jan. 3l. 1958 Nov. 10, 1959 A. H. KIEHL l-:TAL 2,912,078

WINDOW FRAME:

Filed Jan. s1, 1958 s sheets-sheet 2 United States Patent() WINDOW FRAME Arthur H. Kiehl, Rocky River, and Albert A. Laurch, Cleveland, Ohio; said Albert A. Laurich assignor to The F. C. Russell Company, Columbiana, Ohio, a corporation of Ohio Application January 31, 1958, Serial No. 712,446

6 Claims. (Cl. 189--75) This invention relates to window structures and more particularly to the mounting of a window frame in a building wall opening.

The window structure of the present invention comprises a main window frame which may be of conventional construction and an external mounting frame composed of a head bar, a sill bar and two jamb bars that can be assembled on the main frame and attached to the head, sill and jambs of the main frame and to one another to provide a mounting frame surrounding the main Window frame. The four bars forming the mounting frame are so formed that they can be quickly and easily assembled on the main frame at the time of installation of the window. The mounting frame serves to support the window frame in proper position in the building wall opening, the four bars forming the mounting frame being provided with portions for attachment to a face of the building wall and providing an adjustable mounting for the window frame. The mounting frame bars are provided with deformable portions that provide means for locking them to the window frame and are also attached together at their ends to firmly secure the same to the window frame. The mounting frame may also serve as an external trim surrounding the main frame and covering the spaces between the top, bottom and side edges of the window frame and the building Wall opening. An inner metal trim casing may also be provided which is clamped to the bottom, top and side edges of the window frame by means of resilient clamping strips that are held in place by the mounting frame.

Objects of the invention are to provide means for quickly and easily securing a Window frame in proper position within a building wall opening which may be of a height and width materially greater than the height and width of the window frame to provide a mounting frame that can be shipped disassembled and be applied to the window frame at the time of installation and t so construct the mounting frame that it provides a neat and attractive trim or border for the window.

Reference should be had to the accompanying drawings forming part of this specification in which:

Figure 1 is a front elevation of the window structure;

Fig. 2 is a vertical section on an enlarged scale, taken on the line indicated at 2-2 in Figure l;

Fig. 3 is a fragmentary front elevation of the assembled window and mounting frames viewed as indicated at 3-3 in Fig. 2;

Fig. 4 is a fragmentary elevation of the assembled frames viewed as indicated at 4-4 in Fig. 3;

Fig. 5 is a vertical section taken on the line indicated at 5-5 in Fig. 3;

Fig. 6 is a fragmentary section on an enlarged scale showing the interlocking connection between the mounting frame and window frame;

l Fig. 7 is a vertical section showing a slightly modified window construction;

Fig. 8 is a vertical section showing a modified form of mounting frame.

n 2,912,078 Patented Nov. 10, 1959 ice Referring to the accompanying drawings the window structure of the present invention is shown applied to a building wall 1 that is provided with a window opening 2, the window structure including a main window frame 3 and a mounting frame 4 which surrounds the frame 3 and positions the same in the window opening 1.

Aside from its exterior configuration the construction of the window frame 3 is unimportant insofar as the present invention is concerned. As herein shown the frame 3 is formed of sheet metal and has a head 5, a sill 6, jambs'7, and a muntin bar 8 connecting the head and sill intermediate the ends thereof. A xed glass pane 9 is mounted in the rectangular space between the bar 8 and one of the jambs, an adapter bar 10 being provided on the sill 6 between the bar 8 and jamb 7 to accommodate the lower edge of the pane. Inwardly of the fixed pane. 9 a sash 11 is mounted to slide horizontally in the head 5 and sill 6.

The external edge faces of the frame members 5, 6 and 7 are of identical configuration and are formed to provide alined Vexternal channels 12 that receive the mounting frame 4. Theinner and outer walls of the frame members 5, 6 and 7 are bent back upon themselves to form inner and outer anges 13 and 14 that form the inner and outer walls of the channels 12. The outer anges 14 are provided with inwardly bent outer edge portions 15 and the ilanges 13 are provided with inwardly projecting lugs 16 that are spaced from the bottom of the channel. v

The mounting frame 4 closes the spaces between the top, bottom and side edges of the frame 3 and the interior of the window opening and, as shown in Figs. 2 to 7, is formed to provide' a trim surrounding the frame 3. The mounting frame 4 is formed of sheet metal and consists of a head bar 17, a sill bar 18 and two jamb bars 19, which are mounted in the channels 12 ofthe head 5, sill 6 and jambs 7. The frame bars 17, 18 and 19 are preferably of identical cross sectional shape, are channel shaped in cross section and project outwardly from the outer face of the building wall and are mountedl with the open side of the channel facing inwardly. Each of said frame bars has a portion 20 forming the bottom,

attaching ange 22 that engages the building wall 1 eX- teriorly of the opening 2 and that are attached to the wall by suitable fastening members such as screws, nails or the like. Each of the frame bars has a portion 23 that forms the interior wall of the trim channel and that extends inwardly from the portion 20 and past the attaching ilange 22 into the window opening. Along their inner edges the portions 23 of the frame bars 17, 18 and 19 are inwardly offset to provide base portions 24 that are received in the channels 12 of the window frame. The base portion 24 of each frame bar has a reversely bent portion 25 that hooks over the inwardly bent portion 15 of the outer flange 14 and, inwardly of the bent portion 25, is provided with an outwardly arched portion 26. The base portion 24 of each frame bar is of a width less than the widthof the channel 12 so that it can be readily inserted into the channel 12. The arched portions 26 of each of the frame bars are provided with pairs of parallel slots 27 extending across the same that provide locking tongues 28 between them which can be readily attened tovextend across the full width of the channels 12 to prevent disengagement of the reversely bent portions 25 from the inturned portions 15 of the flanges 14. The tongues 28 are spaced apart along the' 28 are flattened the mounting frame 4 is securely locked to the window frame 3. The mountingframe bars 17, 18 and 19 are formed at their ends to abut and overlap at the frame corners and means is` provided for detachably securing the endsof the vframe bars together. As shown in`Fig. 3 the upper and lower ends ofthe portions 21 ofthe jamb bars'1'9 arevprovided with inturned'ilanges 29'thatv engage the portions21 of thehead and sill' bars 1'7 and`18 and that are secured to the head andsillbars bymeans of screws 30.

A drip cap'31 may beA positione'dtofoverlie.thehead bar 17, the cap 31 being provided with an upturned ange 32 that overlies the v1lange'22 of the head' bar, a downturned flange`33 that overlies the face portion'zof the head bar and end flanges 34 thatoverlie the upperends ofthe jamb bars 19, the drip bar being attached to the head -bar by means of the screws30 and heads .of screws, nails or the like used to fasten the -tlange 22 to the building wall 1.

dThe attaching vflanges -22 `of the frame 'bars'17, '18 and 19 overlap at the corners of the mounting frame and are-secured together by means f fastening members 35 such as screws or nails extending through the overlapping end portions of lthe anges and into 4the'building wall.

The window may be provided with an inner sheet metal trim casing 36 provided with outturne'd trim Vportions'37 that overlie the interior face of the building wa'll 1 around the opening`2 and outwardly extending `fiat walls'38 that overlie the top, bottom and side faces of rthe opening`2 and that engage the top, bottornand side edges of the window frame 3. vThe wall portions 38 of the inner trim casing are clamped to the window frame 3 `by'means of retaining strips 39 formed of resilient sheet metal that are held in place by the mounting frame 4. Each of the strips 39 has an outer anchoring portion 40 that is provided with an outer edge flange 41 that'is disposed between the attaching flange'22 of afframe bar and the Wall 1, and a shoulder-42 that engages theportion 21 of the frame bar at the base of thetlangeA 22 to hold the retaining strip against outward movement. The anchoring portion 40 projects into the space between the hook portion 25 and the arched portion 26 ofthe frame bar base portion 24 and has a reversely bent inner edge portion 43. Outwardly of thereversely bent, portion 43 the retaining strip has an outwardlyarchedportion Y44 and an outwardly inclined free edge portion 45 which permits ready insertion of the inner trim casing between theretaining strip and the window frame. Tongues 146 struck up from the arched portion'26 ofthe frame bar hold the inner edge portion 43 `of the retaining strip against inward movement.

Instead of a sheet metal inner trim a Wood trim -47 may be provided as shown in Fig. 7 of the drawings.

In Fig. 8 of the drawings a modie'dform of mounting frame is shownin which each of the mounting'frame bars is provided with an attaching ange 50 and a basev portion 51 that engages in the external channels`12 of -the window frame. The base portion S1 of each of the frame bars has a reversely bent hook portion 52 which engages beneath the inturned portion of the outer ange 14` of the main frame and an outwardly arched portion 53. The base portion 51 is provided with'locking tongues'54 which are formed in the samemanner as the locking tongues'28, previously described, and when flattened lockV the frame bars to the windowframe 3. The attaching anges 50 of the frame barshave overlapping corner portions 55 through which fastening elements -56 extend to secure the frame bars together and tothe building wall.

It is to be understood that in accordance with-the provisions of the patent statutes, variations and modications of the specic. devices herein shown and described may be made without departing. from` the spirit ,of the invention.

sisting of two jambs, a head and a sill having exterior faces with alined longitudinal channels, each side wall of each channel having an inwardly projecting portion spaced from the channel bottom, and an outer mounting frame comprising head, sill and jamb bars joined together at their ends exteriorly of said main frame and each provided with an inner base portion seated in one of said channels and an outwardly projectingv positioning portion at right .angles to said base portion for engagement with a building wall, each of said base portions engaging the bottom of one of said channels with one side edge yunderlying one of said inwardly projecting portions andV having an opposite side edge portion underlying the projecting portion of the opposite sidewall to provide lan interlocking connection between the head, sill `and jambs of the main frame and the head, sill and jamb bars of the mounting frame.

2. A window structure comprising .a main frame consisting of two jambs, a head -and a4 sillhaving exterior faces with alinedY longitudinal channels,..each side wall of eachV channelvhaving .an inwardly projecting portion spacedirom .the .channel bottom, yand an outer sheet metaLmounting frame surrounding said main frame and comprising two jambbars, a head bar and a sill bar, Aeach provided with an inner base portion seated upon the bottom Vof oneof said channels and an outwardlyprojecting positioning portion at right angles to vsaid base portion for .engagement with a building wall,.each:,of said' base portions being in the form of a ange Vnarrower than the channel in which it is seated and having. a longitudinally extending arched portion, said anges having spaced slots extending inwardly from their free edges and across said arched portion. to provide integral tongues which when flattened .provide the base with portions extending across the full width of Vsaid channels and underlying said inwardlyl projecting portions.

3. The combination witha building wall 4having-a window opening of .a main windowframe in said opening that is Aprovidedwith exterioredge faces having alined longitudinal channels, amounting frame surrounding said main frame and .comprising two jamb bars, ahead bar anda sill bar eachformed of a single piece of sheet metal, said bars being of substantially identical cross sectional form, .each of saidbars having achannel shaped trim portion that projectslaterally from a face of said main frame and that has spaced inner and outer walls,- the free edge'portion ofthe innerwall of the trim portion of each of said bars being inwardly olset and seated in .one of said main frame channels, the-outer wall of the-trim portion of each of said bars terminating in a wall engaging lilange, the outer wallsof the trim portions of the jamb bars and the outer walls of the trim portions ,of the head and sil1`bars having overlapping end portions, means for securing said overlapping portions together, means including integral deformable tongues carriedl by said attaching portions for locking said attaching portions in said channels, and springs, each inthe form of a resilient sheet metal strip interposedbetween the exterior edges of saidframe and the .sides of said wall opening, said springs having, anchoring portions engagingthe base and wall engagingportions of said bars and inwardly extending outwardlyarched portions engagingV the building wall at; the top, bottom and sides of the window opening.

4. The combination with'a Vbuildingwall having Va rectangular window opening of a mounting framefcomprising-four onepiece sheet 4metal bars'of substantially identical cross section'each beingchannel'shaped in'cross section" and disposed with the ropen side of Vthe channel facing said opening, overlying an edge of 4said opening andprojecting outwardly'from'said'wall, each of-said channel shaped barsA having an outer Wall provided at its free edge with a. angeA for .engagement'with saidbnilding wall exteriorly'of said opening and an inner wall spaced from its outer wall, extendng into said` window opening 11. A window structure comprising a main frame conand provided with an attaching portion along its-free edge that is inwardly otset and of outwardly arched cross section, the attaching portion of each of said bars having spaced slots extending inwardly from its free edge across said arched portion to provide deformable locking tongues and a window frame having alined external channels in its jarnlbs, head and sill of a width to receive said inwardly offset attaching portions and that have locking projections with which said attaching portions are interlocked when said deformable tongues are attened.

5. The combination with a building wall having a window opening of a main Window frame in said opening provided with exterior edge faces having alined longitudinal channels, a mounting frame surrounding said main frame and comprising two jamb bars, a head bar and a sill bar each formed of a single piece of sheet metal, each of said bars having an outwardly extending portion that engages the outer face of said building wall and a laterally extending attaching portion that'is outwardly arched and of a width to be received in one of said window frame channels, an inner trim frame having flat wall portions overlying the exterior edge faces of said main window frame, a resilient sheet metal retainer strip overlying the attaching portion of each of said bars, each of said retainer strips having an outer anchoring portion disposed with its outer edge between the outwardly extending portion of one of said frame bars and the building wall and its inner edge portion in one of said window frame channels outwardly of the arched portion of the underlying attaching portion of a frame bar and an inwardly projecting outwardly arched flange portion exteriorly engaging a at wall portion of said inner trim frame, and

lugs struck up from said arched attaching portion and engaging the inner face of said anchoring portion adjacent its inner edge.

6. A window structure comprising a main frame provided with a longitudinal channel in an edge face thereof that is provided with side walls having inwardly projecting portions spaced from the channel bottom and a sheet metal mounting bar having a base seated in said channel and an integral positioning portion extending outwardly from said base for engagement with a building wall, said `base being narrower than said channel and having one longitudinal edge portion formed to. engage beneath the projection of one side wall and having an outwardly arched longitudinally extending portion spaced from said edge portion, said base having slots extending inwardly from its opposite longitudinal edge and across said arched portion to provide integral tongues adapted to be attened to provide the base with portions extending across the full width of said channel and underlying said inwardly projecting portions.

References Cited in the le of this patent UNITED STATES PATENTS 1,570,351 Hultin Jan. 19, 1926 2,249,257 Rumney et al July 15, 1941 2,773,571 Kelly Dec. 11, 1956 

